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AC/DC & DC/DC converters (integrated FET)

TPS54550

現行

具低側閘極驅動器的 4.5-V 至 20-V、6-A 同步降壓轉換器

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TPS543620 現行 4-V 至 18-V 輸入、進階電流模式、6-A 同步 SWIFT™ 降壓轉換器 Higher efficiency, better accuracy and smaller size

TPS54550

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 6 Vin (min) (V) 4.5 Vin (max) (V) 20 Topology Buck Type Converter Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 700 Features Enable, Frequency synchronization, Phase Interleaving, Power good, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 0.9 Vout (max) (V) 12 Rating Catalog Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.009
Iout (max) (A) 6 Vin (min) (V) 4.5 Vin (max) (V) 20 Topology Buck Type Converter Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 700 Features Enable, Frequency synchronization, Phase Interleaving, Power good, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 0.9 Vout (max) (V) 12 Rating Catalog Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.009
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • 40 m MOSFET Switch for High Efficiency at 6-A (7.5 Peak) Output Current
  • Uses External Lowside MOSFET
  • Output Voltage Adjustable Down to 0.891 V With 1% Accuracy
  • Synchronizes to External Clock
  • 180° Out of Phase Synchronization
  • Wide PWM Frequency— Fixed 250 kHz, 500 kHz or Adjustable 250 kHz to 700 kHz
  • Adjustable Slow Start
  • Adjustable Undervoltage Lockout
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • 16-Pin TSSOP PowerPAD™ Package
  • SWIFT Documentation Application Notes, and Design Software: www.ti.com/swift
  • APPLICATIONS
    • Industrial and Commercial Low Power Systems
    • LCD Monitors and TVs
    • Computer Peripherals
    • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors

SWIFT, PowerPAD are trademarks of Texas Instruments.
  • 40 m MOSFET Switch for High Efficiency at 6-A (7.5 Peak) Output Current
  • Uses External Lowside MOSFET
  • Output Voltage Adjustable Down to 0.891 V With 1% Accuracy
  • Synchronizes to External Clock
  • 180° Out of Phase Synchronization
  • Wide PWM Frequency— Fixed 250 kHz, 500 kHz or Adjustable 250 kHz to 700 kHz
  • Adjustable Slow Start
  • Adjustable Undervoltage Lockout
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • 16-Pin TSSOP PowerPAD™ Package
  • SWIFT Documentation Application Notes, and Design Software: www.ti.com/swift
  • APPLICATIONS
    • Industrial and Commercial Low Power Systems
    • LCD Monitors and TVs
    • Computer Peripherals
    • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors

SWIFT, PowerPAD are trademarks of Texas Instruments.

The TPS54550 is a medium output current synchronous buck PWM converter with an integrated high side MOSFET and a gate driver for an low side external MOSFET. Features include a high performance voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter inductors and capacitors. The TPS54550 has an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 4.5 V; a slow-start circuit to limit in-rush currents; and a power good output to indicate valid output conditions. The synchronization feature is configurable as either an input or an output for easy 180° out of phase synchronization.

The TPS54550 device is available in a thermally enhanced 16-pin TSSOP (PWP) PowerPAD™ package. TI provides evaluation modules and the SWIFT™ Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

The TPS54550 is a medium output current synchronous buck PWM converter with an integrated high side MOSFET and a gate driver for an low side external MOSFET. Features include a high performance voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter inductors and capacitors. The TPS54550 has an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 4.5 V; a slow-start circuit to limit in-rush currents; and a power good output to indicate valid output conditions. The synchronization feature is configurable as either an input or an output for easy 180° out of phase synchronization.

The TPS54550 device is available in a thermally enhanced 16-pin TSSOP (PWP) PowerPAD™ package. TI provides evaluation modules and the SWIFT™ Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.
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類型 標題 日期
* Data sheet 4.5-V to 20-V Input 6-A Output Synchronous PWM Switcher w/Integrated FET (SWIFT) datasheet (Rev. A) 2006年 4月 4日
EVM User's guide TPS54550 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 8月 25日
Analog Design Journal TI Powers Altera's Arria II GX FPGA Development Kit 2009年 9月 29日
More literature TPS54550PWP Test Report 2008年 2月 15日

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模擬型號

TPS54550 PSpice Transient Model

SLVM340.ZIP (56 KB) - PSpice Model
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HTSSOP (PWP) 16 檢視選項
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